On Thu, 1 Jun 2017, Loren Wilton wrote:

 Hopeless-Forming-Philistinizes: jobs
 Lossy-Cabdriver: 2368db81dcf1
 Alba-Leanness-Elections: 38376DB11A
 Merrimac-Grams-Participating: B354488539E
 Giving-Remarkably-Incriminate: drawl

 Dustin-Ransoming: 18
 Person-Decathlon-Arnold: dfcfce7ba985
 Majority-Gambles: 45555f856
 Buttock-Milky-Dogged: 8E626A527D73
 Scoff-Invoke: ea3ff6a6

 Wish-Growing: 57878
 Stiffest-Ghastly-Contaminates: 899
 Cabling-Paddle: exploratory
 Adjacency-Ranting: 89EC6563C14
 Asinine-Midwife-Reread: 67b5d4b3973a75b

Note that these are all (so far) two or three word headers with initial capson each word and all the rest lowercase, and a token value that is either a single all-lower-case word or a single hex string. There are also no digits to the left of the colon. Also, none of them start with "X-".

Just looking at the rather extensive headers on the mail I'm replying to, exactly zero of them match the pattern I've described above.

...and that pattern is trivially easy for the spammer to change.

--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
 jhar...@impsec.org    FALaholic #11174     pgpk -a jhar...@impsec.org
 key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
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 5 days until the 73rd anniversary of D-Day

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